LMX1204 JESD Buffer/Multiplexer/Divider

Texas Instruments LMX1204 JESD Buffer/Multiplexer/Divider has a high-frequency capability and extremely low jitter. This feature makes it a great approach to clock precision and high-frequency data converters without degradation to the signal-to-noise ratio. Each of the four high-frequency clock outputs and additional LOGICLK output, with a larger divider range, is paired with a SYSREF output clock signal. The SYSREF signal for JESD interfaces can either be internally generated or passed in as an input and re-clocked to the device clocks. For data converter clocking applications, having the clock jitter be less than the aperture jitter of the data converter is critical. In applications where more than four data converters must be clocked, various cascading architectures can be developed using multiple devices to distribute all the high-frequency clocks and SYSREF signals required. With a low jitter and noise floor, the Texas Instruments LMX1204, combined with an ultra-low noise reference clock source, is an exemplary selection for clocking data converters, especially when sampling above 3GHz.